EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 7 students in a test are given below. Find the median.
4
7
13
7
11
17
19
(i)
19
(ii)
4
(iii)
11
1
7
(iv)
15
(v)
11
Question
2
2.
Find the median of all prime numbers between 20 and 70.
(i)
41
(ii)
43
(iii)
45
(iv)
42
(v)
44
Question
3
3.
Find the median of all the factors of 30.
(i)
21
4
(ii)
6
(iii)
11
2
(iv)
9
2
(v)
13
2
Question
4
4.
Find the median of first 7 whole numbers.
(i)
2
(ii)
0
(iii)
3
(iv)
4
(v)
6
Question
5
5.
Find the median of all the factors of 40.
(i)
13
2
(ii)
7
(iii)
25
4
(iv)
15
2
(v)
11
2
Question
6
6.
Find the median of the first 20 odd numbers.
(i)
19
(ii)
17
(iii)
20
(iv)
21
(v)
22
Question
7
7.
Find the median of the first 10 even numbers.
(i)
10
(ii)
11
(iii)
12
(iv)
13
(v)
8
Question
8
8.
The marks obtained by 12 students in a test are given below. Find their median marks.
50
38
45
15
28
44
26
49
32
17
16
3
(i)
30
(ii)
33
(iii)
29
(iv)
31
(v)
28
Question
9
9.
Heights of 11 students (in cm) are given below. Find the median height.
170
140
163
137
149
173
172
131
174
172
140
(i)
165
cm
(ii)
161
cm
(iii)
164
cm
(iv)
163
cm
(v)
162
cm
Question
10
10.
Heights of 14 plants (in cm) are given below. Find the median height.
87
87
96
65
62
93
65
74
75
88
57
76
91
64
(i)
76
cm
(ii)
153
2
cm
(iii)
151
2
cm
(iv)
155
2
cm
Question
11
11.
Ages of 13 students (in years) are given below. Find the median age.
15
10
11
12
12
11
15
12
14
13
13
11
12
(i)
13
years
(ii)
10
years
(iii)
14
years
(iv)
11
years
(v)
12
years
Question
12
12.
Rainfall of 15 days (in mm) are given below. Find the median rainfall.
8
9
11
7
15
15
15
10
8
13
12
12
15
14
5
(i)
13
mm
(ii)
10
mm
(iii)
11
mm
(iv)
12
mm
(v)
14
mm
Question
13
13.
Scores of 15 students are given below. Find the median score.
83
82
89
80
71
85
90
75
76
70
83
82
76
77
79
(i)
79
(ii)
80
(iii)
82
(iv)
78
(v)
81
Question
14
14.
Temperatures of 15 days (in °C) are given below. Find the median temperature.
31
27
32
29
34
34
30
28
33
26
25
30
31
32
26
(i)
28
°C
(ii)
29
°C
(iii)
31
°C
(iv)
32
°C
(v)
30
°C
Question
15
15.
Weights of 14 students (in kg) are given below. Find the median weight.
47
55
47
56
58
46
53
50
56
47
49
44
47
45
(i)
47
kg
(ii)
50
kg
(iii)
46
kg
(iv)
49
kg
(v)
48
kg
Question
16
16.
Daily wages of 11 labourers (in ₹) are given below. Find the median wage.
429
383
394
418
336
438
382
426
406
343
392
(i)
₹
395.00
(ii)
₹
394.00
(iii)
₹
396.00
(iv)
₹
392.00
(v)
₹
393.00
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
12
,
find the observations of the data
(i)
12
,
12
,
20
(ii)
9
,
12
,
18
(iii)
8
,
12
,
16
(iv)
16
,
12
,
32
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
18
and
12
respectively and
x
3
-
x
1
=
30
,
find
x
1
,
x
2
,
x
3
(i)
6
,
12
,
36
(ii)
10
,
12
,
40
(iii)
8
,
12
,
38
(iv)
12
,
12
,
72
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
25
and x +
26
and the median as
32
1
2
,
find the value of x.
(i)
7
(ii)
8
(iii)
6
(iv)
5
(v)
10
Assignment Key
1) (v)
2) (ii)
3) (iii)
4) (iii)
5) (i)
6) (iii)
7) (ii)
8) (i)
9) (iv)
10) (iii)
11) (v)
12) (iv)
13) (ii)
14) (v)
15) (v)
16) (ii)
17) (iii)
18) (i)
19) (i)
